WAEC 2026 COMPUTER HARDWARE AND GSM REPAIRS ANSWER


COMPUTER & GSM
1-10: DBBCADDBAC
11-20: BADCAADADB
21-30: ADDACCADDC
31-40: ABBBDBDCCB


(1ai)
(PICK ANY TWO)
(i) To prevent unauthorized access to the phone after factory reset.
(ii) To protect personal data and information from theft.
(iii) To discourage phone theft by making the phone unusable to strangers.
(iv) To ensure only the original owner can reactivate the phone after reset.

(1aii)
(i) Open Settings and select Security or Lock Screen.
(ii) Tap Screen Lock and choose Pattern.
(iii) Draw and confirm the desired pattern lock.

(1bi)
(PICK ANY ONE)
Collateral is a valuable property or asset pledged as security to obtain a loan for starting or running a GSM phone repair business.

OR

Collateral refers to an asset presented to a lender as guarantee for repayment of money borrowed to establish the business.

(1bii)
(PICK ANY THREE)
(i) Inadequate capital.
(ii) Lack of technical skills or experience.
(iii) Poor location of the business.
(iv) Unreliable power supply.
(v) Lack of genuine repair tools and spare parts.
(vi) Poor customer relations.

=============================

(2ai)



(2aii)
block diagram.

(2b)
(i)Switch off the electrical power supply if possible.
(ii)Use a CO? or dry powder extinguisher only.
(iii)Pull the safety pin and aim the nozzle at the base of the fire.
(iv)Press the handle and sweep the extinguisher from side to side until the fire goes out.


OR


(i)Switch off the electrical power supply.
(ii)Use a CO? or dry powder extinguisher.
(iii)Aim the nozzle at the base of the fire.
(iv)Press the handle and spray until the fire stops.

============================

(3ai)
(PICK ANY THREE)
(i) Faulty touch screen
(ii) Damaged touch IC
(iii) Faulty touch flex
(iv) Faulty touchscreen connector.

(3aii)
(PICK ANY TWO)
(i) Replace the touch screen
(ii) Re-solder or replace damaged touch IC
(iii) Clean and reconnect touch flex
(iv) Replace or repair connector socket

(3b)
(i) Internal antenna
(ii) External antenna

(3c)
(i) Rear-mounted fingerprint sensor
(ii) Side-mounted fingerprint sensor
(iii) Front-mounted fingerprint sensor

=============================

(4a)


(4b)
(PICK ANY TWO)
(i)Charger output current/amperage
(ii)Battery capacity
(iii)Battery temperature
(iv)Quality/condition of the charging cable and port

(4ci)
(PICK ANY ONE)

(i)Faulty or disconnected hard disk/SSD
(ii)Corrupted or missing operating system

(4cii)
(PICK ANY ONE)
(i)Faulty or disconnected hard disk/SSD: Reconnect or replace the faulty hard disk/SSD.
(ii)Corrupted or missing operating system: Reinstall the operating system properly.

=============================

(5ai)
(PICK ANY TWO)
(i) Poor or no internet connection.
(ii) Insufficient storage space on the device.
(iii) Incorrect google account settings.
(iv) Outdated android operating system.
(v) Play store application malfunction.
(vi) Restriction or parental control settings.
(vii) Corrupted play store cache or data.
(viii) Server failure from google play store.

(5aii)
(PICK ANY TWO) (BUT SAME NUMBER THAT WAS PICKED IN 5ai)

(i) Connect the phone to a stable internet connection.
(ii) Delete unwanted files or applications to create storage space.
(iii) Sign in with the correct Google account settings.
(iv) Update the Android operating system.
(v) Restart or update the Play Store application.
(vi) Remove or adjust restriction and parental control settings.
(vii) Clear the Play Store cache and data.
(viii) Wait and try again when the Google Play Store server is restored.

(5b)
(PICK ANY ONE)
Business risk is the chance that a phone repair business may not achieve its expected profit or may experience losses because of uncertainties or unforeseen problems in the business.

OR

Business risk in running a phone repair business is the possibility of suffering loss, damage, or failure due to problems that may occur during the operation of the business

(5bii)
(PICK ANY TWO)
(i) Good technical skills and experience.
(ii) Availability of quality repair tools and equipment.
(iii) Good customer relations.
(iv) Availability of genuine spare parts.
(v) Proper business location.
(vi) Effective advertising and promotion.
(vii) Honesty and reliability in service delivery.
(viii) Adequate capital for the business.

============================

(6ai)
Charging flex board

(6aii)
(PICK ANY ONE)
(i) Flex cable.
(ii) Ribbon connector
(iii) Socket connector

(6bi)
(PICK ANY THREE)
(i) Charging port (USB port)
(ii) Microphone
(iii) Resistor
(iv) Capacitor
(v) Diode
(vi) Integrated circuit (IC)
(vii) Charging coil
(viii) Antenna connector
(ix) Fuse

(6bii)
Smartphone.

(6ci)
(PICK ANY TWO)
(i) The phone will not charge
(ii) The microphone may not work properly
(iii) Slow charging
(iv) Charging port becomes loose
(v) USB connection to computer may fail
(vi) Phone may switch off frequently during charging
(vii) Charging indicator may not display

(6cii)
(PICK ANY TWO)
(i) Soldering iron
(ii) Hot air gun
(iii) Digital multimeter
(iv) Tweezers
(v) Magnifying lens
(vi) Screw driver set
(vii) Soldering paste

(6di)
X: Internal battery
Y: Removable battery

(6dii)
It store and supply electrical power to the mobile phone.

(6diii)
(PICK ANY THREE)
(i) The phone will not power on
(ii) The battery drains quickly
(iii) The phone will not charge properly
(iv) Phone overheats
(v) Swollen battery
(vi) Phone restarts randomly
(vii) Battery percentage fluctuates
(viii) Short battery backup time

(6div)
Advantages of component X over component Y:

(PICK ANY ONE)
(i)It is more securely fixed inside the phone.
(ii)It makes the phone slimmer and lighter.
(iii)It gives longer battery performance.
(iv) It is more securely fitted and cannot fall out easily

(6dv)
Advantages of component Y over component X:

(PICK ANY TWO)
(i)It can be removed easily.
(ii)It is easy to replace when faulty.
(iii)It can be swapped with another charged battery.
(iv)It is easier to troubleshoot during repairs.
(v)It does not require opening the phone before removal.

=============================

(7ai)
Recovery mode

(7aii)
iPhone

(7aiii)
(i) Fixing phone firmware corruption.
(ii) Removing boot loop or system crash problem.

(7aiv)
(i) Switch off the iPhone.
(ii) Press and hold the Home button (or volume button for newer models).
(iii) Connect the phone to a computer using a USB cable while still holding the button.
(iv) Release the button when the recovery mode appears, then use iTunes or Finder to restore the phone.

(7av)
(PICK ANY ONE)
(i) Ensure the phone battery is adequately charged before restoration.
(ii) Use the correct USB cable and avoid disconnecting the phone during the restoration process.

(7bi)
UFS Box (Universal Flashing System Box)

(7bii)
(PICK ANY ONE)
(i) Flashing or installing phone firmware
(ii) Unlocking or repairing phone software faults

(7biii)
Computer system (PC/laptop)

(7biv)
(PICK ANY THREE)
(i) Phone hanging/freezing
(ii) Boot loop problem
(iii) Corrupt phone firmware
(iv) Phone operating system crash

(7bv)
(i) Connect the UFS box to the computer system.
(ii) Install and open the flashing or software repair application.
(iii) Connect the mobile phone to the UFS box using the appropriate cable.
(iv) Select the correct firmware file or model of the phone.
(v) Start the flashing process and wait for completion

(7bvi)
(PICK ANY ONE)
(i) Ensure stable power supply and do not disconnect the phone during flashing.
(ii) Use the correct firmware version for the phone model.





WAEC 2026 BEAUTY & COSMETOLOGY ANSWER


BEAUTY & COSMETOLOGY
1-10: CDBAACBBDC
11-20: BCDACBDDCB
21-30: ACACDABACC
31-40: ACACBADDAD


(1ai)
(PICK ANY ONE)
Decontamination is the process of removing dirt, bacteria, germs and other harmful microorganisms from tools, equipment and surfaces used in cosmetology to make them safe and hygienic for use.

OR

Decontamination is the cleaning, sanitizing and disinfecting of cosmetology materials and work areas to prevent the spread of infection and disease.

(1aii)
(PICK ANY ONE)
Sterile means completely free from all living microorganisms such as bacteria, fungi and viruses. It refers to tools or materials that are totally germ-free and safe for use.

OR

Sterile is the condition in which an object or environment has been properly treated to destroy all forms of microbial life and contamination.

(1aiii)
(PICK ANY ONE)
Contamination is the presence or introduction of harmful microorganisms, dirt or impurities into clean tools, equipment or surfaces, making them unsafe for use.

OR

Contamination is the process by which germs or infectious substances are transferred from one object, person or surface to another.

(1b)
(PICK ANY THREE)
(i) Disinfectants are used on non-living objects and surfaces, while antiseptics are used on living tissues such as the skin.

(ii) Disinfectants are usually stronger chemical agents, while antiseptics are milder and safer for body use.

(iii) Disinfectants are used to destroy germs on tools and equipment, while antiseptics are used to prevent infection in cuts, wounds and skin surfaces.

(iv) Disinfectants are mainly used for cleaning salon equipment and work surfaces, while antiseptics are applied to the hands or skin before and after treatment.

(v) Disinfectants may be harmful or irritating to human skin, while antiseptics are specially made to be safe on the skin.

(vi) Disinfectants are commonly used after work to sterilize tools, while antiseptics are used during treatment to prevent infection.

(vii) Examples of disinfectants include bleach and formalin, while examples of antiseptics include iodine and methylated spirit.

(viii) Disinfectants are not suitable for open wounds, while antiseptics can be applied to cuts and wounds.

=============================


(2a)
E: French braid

F: Cornrow braid

(2bi)
(PICK ANY FOUR)(TABULAR FORM)
E:
(i) It is braided in large sections.
(ii) It is loose and raised outward from the scalp.
(iii) It has curved or slanting braid patterns.(iv) It is mainly used for decoration and beauty.
(v) It takes less time to braid.
(vi) It may not last for a long time.

F:
(i) It is braided in small narrow rows.
(ii) It lies flat and close to the scalp.
(iii) It has straight row braid patterns.
(iv) It is mainly used for protection and weaving foundation.
(v) It takes more time to braid.
(vi) It lasts for a longer period.

(2bii)
(PICK ANY FOUR)
(i) It lasts longer than diagram E.
(ii) It protects the hair better than diagram E.
(iii) It is firmer and does not loosen easily.
(iv) It can serve as a foundation for weaving and attachments.
(v) It keeps the hair neat for a longer period.
(vi) It is easier to maintain than diagram E.

(2biii)
(PICK ANY SIX)
(i) tail comb.
(ii) hair cream or pomade.
(iii) hair attachment or extension.
(iv) hair brush.
(v) hair clips.
(vi) thread or rubber band.
(vii) scissors.
(viii) mirror.
(ix) hair oil or moisturizer.
(x) towel.

(2c)
(PICK ANY SIX)
(i) Wash and dry the hair properly.
(ii) Apply hair cream or moisturizer to soften the hair.
(iii) Comb and detangle the hair thoroughly.
(iv) Divide the hair into neat sections or rows.
(v) Pick small portions of hair from each section and braid closely to the scalp.
(vi) Continue the braiding process uniformly to the end of each row.
(vii) Secure the ends of the braid with thread or rubber band if necessary.
(viii) Apply oil or spray to keep the braid neat and shiny.

============================

(3a)
(PICK ANY FIVE)

(i)Foot spa basin
(ii)Nail clipper
(iii)Nail file/emery board
(iv)Cuticle pusher
(v)Pumice stone/foot file
(vi)Pedicure brush
(vii)Cuticle nipper/scissors

(3b)
(i)Welcome and examine the client’s feet and nails.
(ii)Remove old nail polish from the toenails.
(iii)Wash and disinfect the feet properly.
(iv)Soak the feet in warm soapy water.
(v)Dry the feet with a clean towel.

(3c)
(PICK ANY FIVE)

(i)Dry skin
(ii)Walking barefoot frequently
(iii)Wearing open-back (iv)slippers or sandals
(v)Standing for long hours
(vi)Poor foot hygiene
(vii)Obesity/excess body weight
(viii)Lack of moisturising the feet

(3d)
(PICK ANY SEVEN)

(i)Soak the feet in warm water regularly.
(ii)Scrub the heels with pumice stone/foot file.
(iii)Apply moisturizing cream or lotion daily.
(iv)Use heel balm on cracked areas.
(v)Wear clean cotton socks.
(vi)Avoid walking barefoot.
(vii)Wear comfortable covered shoes.
(viii)Remove dead skin carefully during pedicure.
(ix)Drink enough water to prevent dryness.
(x)Keep the feet clean and dry always.


(3e)
(PICK ANY THREE)

(i)Keeps the feet clean and healthy.
(ii)Softens rough soles and cracked heels.
(iii)Improves blood circulation through massage.
(iv)Makes the toenails neat and attractive.
(v)Helps the client to relax and feel comfortable

=============================

(4a)
(i) Infra-red rays
(ii) Ultra-violet rays
(iii) Visible light rays
(iv) Blue light rays
(v) Red light rays
(vi) Violet rays
(vii) Laser rays

(4b)
(PICK ANY FIVE)
(i) Texture of hair
(ii) Density of hair
(iii) Elasticity of hair
(iv) Porosity of hair
(v) Hair growth pattern
(vi) Length of hair

(4c)
(i) Normal scalp
(ii) Dry scalp
(iii) Oily scalp

(4d)
(i) Fine hair:
(PICK ANY ONE)
Fine hair should be thinned far from the scalp.

OR

Fine hair should be thinned towards the hair ends and not close to the scalp.

(ii) Medium hair:
(PICK ANY ONE)
Medium hair should be thinned moderately close to the scalp.

OR

Medium hair should be thinned midway between the scalp and the hair ends.

(iii) Coarse hair:
(PICK ANY ONE)
Coarse hair should be thinned close to the scalp.

OR

Coarse hair should be thinned near the roots to reduce bulkiness.

(4e)
(PICK ANY SEVEN)
(i) It softens the hair.
(ii) It gives shine to the hair.
(iii) It prevents dryness of the hair and scalp.
(iv) It makes combing easier.
(v) It helps to prevent hair breakage.
(vi) It nourishes the scalp and hair.
(vii) It improves blood circulation during scalp massage.
(viii) It helps hair growth.
(ix) It reduces scalp irritation.